主梁

平面钢闸门主梁可靠度校准分析

Analysis on the reliability standard of primary beam of plain steel gate

计算主梁绝对最大挠度的数学模型与0.618法

Application of 0.618 Method on Calculating Absolute Maximum Deflection of Primary Beam

主梁的腹板和翼缘用ASTMA441钢制造

The web and flanges of the main girders were fabricated from ASTM A441 steel .

桥式起重机箱形主梁PSN曲线统计法

Statistical method of P-S-N curves for box girders of overhead travelling crane

PC斜拉桥主梁应变测试技术研究

Research of Strain Measurement Techniques for Main Girders of PC Cable-Stayed Bridges

CO2焊在织机主梁制造中的应用

Application of CO_2 Welding in Loom Main Beam Manufacture

基于现代设计方法的LDA起重机主梁设计

Advanced design methods based design for main girder of LDA crane

基于APDL的门式起重机主梁参数化建模与仿真

Parametric modeling and simulation of main girder for gantry crane based on APDL

荆州长江公路大桥主梁C60混凝土配合比设计

Design of the Concrete Mix Proportion of the Yangtze River Bridge of Jingzhou

10t×25.5桥式起重机主梁下挠的修复

Reparation of Beam Bottom Bending of 10 t × 25.5 Bridge Crane

20t桥式起重机主梁下挠变形修复

Restoration of the Down Deflection on Bridge Crane Girder

440t盾构门式起重机主梁的设计计算

Design and calculation of main girder in shield gantry crane

根据建筑条件及主梁的布置情况，考虑在较大的上部荷载作用下，对8m×6m柱网地下车库楼盖次梁的几种方案进行了分析。

Based on the architectural condition and the girder layout , several methods for planning secondary beam of an underground garage were given .

分析表明：斜腹板厚度为30cm左右时，主梁的应力分布比较合理。

Analysis shows that the stress distributions of main girder are reasonable when the inclined web thickness is around 30 cm .

对于新型GFRP组合桥梁，通过考虑GFRP桥面板与工字型钢纵梁组合共同受力，分析了跨长、纵梁间距、主梁尺寸及横撑刚度等各参数对桥梁横向荷载分布系数的影响。

Based on an analysis of the mutual action of GFRP deck and I-shaped longitudinal steel beam , different parameters of the influence on transversal live-load distribution factor are analyzed .

用VB语言模拟了一座跨度为1000m的悬索桥的主梁随机风场，验证了该方法的有效性。

According to this method , a stochastic wind loading on a main beam of a suspended bridge with a span of 1000m was simulated to verify the efficiency of the method .

大跨径梁式桥的主要病害125t吊车主梁断裂原因分析

Main Faults in Large Span Beam Bridges ANALYSIS ON BREAKDOWN OF MAIN BEAM OF 125 ? t CRANE

针对某公路大桥施工过程中两榀跨径40m的预应力混凝土T形主梁出现开裂的工程实例，分析了裂缝产生的原因；

This paper discusses the causes of the construction crack , existing in two pre stressed concrete T beams of 40 m span during the construction of a highway bridge .

CRCP接线路面的受力性能主要受主梁收缩变形、CRCP自身收缩和干缩三方面的影响。

The mechanical performance of CRCP approach pavements is influenced by following three : contraction distortion of the main beam , shrinkage and dry shrinkage of CRCP itself .

COMA结合梁计算软件也与通用的结构分析软件不同，基本原理仍建立在平截面假定的基础上，表征结构受力状态的量值已具体到结合部的混凝土板和钢主梁。

In this paper , the basic principle will be still based on plane surface assumption , the magnitude of forces exerted on the characterization structure will be specially assigned to the concrete deck panel and steel girder at their joint .

采用高强度钢丝绳作为张拉元件，对20t抓斗吊车主梁进行预应力法下挠处理，恢复了主梁上拱度，取得预期效果。

Using the high strength rope as a tensile element , the deflection of girders of 20 ton grab crane were corrected by the prestressed ropes . The desired result was achieved .

全无缝桥梁取消了全部桥面和路桥伸缩缝，主梁的温度变形由搭板后的CRCP接线路面来吸纳。

The total jointless bridge cancels the expansion joints of the whole bridge deck , thus , the temperature deformation of the main beam is absorbed by CRCP approach pavement that behind the approach slab .

荆州长江公路大桥北汊通航孔桥为主跨500m双塔双索面预应力混凝土斜拉桥，其主梁为肋板形式，结构的非线性影响使结构分析较复杂。

Jingzhou Changjiang River Highway Bridge is a double cable plane double pylons prestressed concrete cable stayed bridge with the main span of 500 m. The main girder is rid plate girder . The structure analysis is complicated for its structure nonlinear influence .

沈阳市富民桥引桥为跨径30m预应力混凝土连续刚构，主梁采用大悬臂斜腹板箱形断面，单箱三室等高度箱梁，桥墩采用双壁墩，桥台采用肋板式桥台。

The approach spans of Fumin Bridge in Shenyang are composed of 30-m span pre-stressed concrete continuous rigid-frame structures , of which the main girder is designed as triple cells single box section of constant height , and of long cantilever and inclined webs .

DTMD是一种新型的具有双频率的调谐质量阻尼器，与普通TMD（调谐质量阻尼器）相比，可以同时实现对桥梁主梁竖向和扭转振动的控制。

DTMD ( Dual-Frequency Tuned Mass Damper ) is a new-type tuned mass damper ( TMD ) with dual frequencies . Compared with the conventional TMD , it can simultaneously control the vertical and torsional vibrations of the bridge deck .

论文中以20t-22.5m-A5桥式起重机的主梁和端梁为基本模型进行了建模分析和计算验证。

In this paper , the 20t-22.5m-A5 bridge-type crane 's main beam and carry beam are taken as basic models and their parameters as referenced parameters .

然后，针对936E装载机后车架主梁，建立了有限元模型，按不同的焊接工艺次序进行了计算分析，计算结果与实测结果吻合较好。

Then a finite element model for the main beam of 936E loader rear frame is established and computation is carried out according to different welding sequence .

信阳市民权路浉河大桥为主跨136m独塔双索面预应力混凝土边主梁斜拉桥。

The Minquan Road Shihe River Bridge in Xinyang City is a single pylon and double cable plane cable-stayed bridge with prestressed concrete edge main girders and with a main span 136 m.

经典的几何非线性分析方法引起的恒载应力相对误差在10%以内，主梁成桥标高相差超过0.5m；

Although the relative error of dead load stress caused by classic geometrical nonlinear analysis method is no more than 10 % , it influences configuration of bridge significantly . The maximal error of elevation of main girder is more than 0.5 m when classic method is used .

本文分析了提速客车以160km·h-1的车速通过32m下承式钢板梁桥时的竖向共振特性，竖向共振没有使主梁动挠度最大值增加，不是桥梁竖向刚度的控制因素。

The vertical resonance character of a steel plate girder bridge with 32 m in span is also analyzed . The vertical resonance is found not the dominant factor in the vertical stiffness of the bridge , because the resonance does not increase the maximum dynamic deflections in the span .